Field guide / About / Editorial approach
About Types of Coffee Beans
Types of Coffee Beans explains coffee species, varieties, roasts and where Philippine coffee grows. The first pages, dated 18 September 2026, were AI-assisted drafts that passed automated checks; on 29 September 2026 we checked 10 main claims against named sources.
- Harvest data: Philippine Statistics Authority OpenSTAT tables, read 29 and 30 September 2026.
- Pages: the home index, 10 bean field notes and this page.
- Method: AI-assisted drafts and automated page checks, plus a source check of 10 main claims on 29 September 2026.
- Latest fact check: 29 September 2026. Of 10 claims tested, 8 were upheld, 1 was narrowed and 1 was corrected. The harvest figures were read again on 30 September 2026.
- Errors: use the contact options at joesblend.com, and name the page and the sentence, with a source if you have one.
What is Types of Coffee Beans?
Types of Coffee Beans is a field guide to the names on a coffee bag: species, varieties, roasts and where Philippine coffee grows. It has a home index, 10 bean field notes and this page. If you're new to the names, start with Arabica versus Robusta.
Each page links in its header and footer to the Joe's Blend online store, which sells a 100% Arabica 3-in-1 instant coffee on its product page. The field notes cover coffee in general. They don't score, rank or review that coffee or anyone else's.
How were the field notes made and checked?
These are the steps so far, and what each one has covered.
- Choose the question. Topics come from measured Philippine search demand, for example about 3,600 monthly searches for types of coffee beans and 2,900 for arabica vs robusta (Google Ads search volume for the Philippines, via DataForSEO, September 2026).
- Write a draft. AI writing tools produced the first versions under fixed house rules: plain words, American spelling, no pretend tastings or farm trips, and no fake facts, figures or sources.
- Run the automated checks. A script tests the short answer, FAQ markup, reading grade, links, spelling and wording repeated across pages, and it blocks a page that fails. Every page went through it before publishing.
- Check the sources. On 29 September 2026, 10 main claims were checked against the sources below, and the pages that give harvest figures gained their own numbered source lists. Pages without a Sources list have been checked only for the claims listed on this page.
- Answer real searches. On 29 September 2026 we read this site's Search Console data. It named two searches, and the one the pages didn't yet answer, robust coffee, now has an answer on the Robusta page.
What did the 29 September 2026 fact check correct?
We checked 10 of the site's main factual claims against the sources listed below. One was corrected and one was narrowed. Both changes came from the Philippine Statistics Authority's harvest figures, which we read that day and divided by province.
- Corrected: the Philippine bean guide said Liberica and Excelsa grow around Batangas and Cavite. Those provinces keep the barako name, but in 2021 they grew 3.9 percent of the country's Liberica and 6.8 percent of its Excelsa, and Sulu and Iloilo grew 61.6 percent of the Liberica. In 2024 Batangas and Cavite grew 6.2 percent of the Liberica, the latest figure before gaps in PSA's Liberica rows, and in 2025 they grew 15.7 percent of the Excelsa.
- Narrowed: the guide placed Arabica in the Cordillera and parts of Mindanao. Both grow it, but Mindanao grew 85.9 percent of the 2021 Arabica crop and the Cordillera 7.6 percent. In 2025 the shares were 83.5 and 12.5 percent.
The Philippine bean guide and the Arabica, Liberica and Excelsa field notes now give the growing-area figures with their source.
On 30 September 2026 we read the PSA table again, and this page, the Philippine bean guide and the Arabica, Liberica and Excelsa notes now give 2025 shares, with 2021 kept as history. For Liberica they lead with 2024, because the 2025 table has no Liberica figure for Sulu or Iloilo from July to December.
Source for this section: Philippine Statistics Authority, OpenSTAT crop production table, read 29 and 30 September 2026.
What did the 6 October 2026 check correct?
- Corrected: the Excelsa notes said botanists class excelsa as a variety of Liberica, Coffea liberica var. dewevrei. A 2025 Kew-led study split Liberica into three species and reinstated excelsa as Coffea dewevrei. The Excelsa notes, the home page and this page now say so, and cite the study.
Source for this section: Davis and colleagues, Nature Plants, 2025, PMID 40781487.
Which claims held up?
Eight claims held as written on 29 September; one of them, on excelsa, was corrected on 6 October. Each one now points to a source you're free to read yourself.
- Robusta has more caffeine than Arabica. Researchers at Nestlé's R&D center in Tours, France, working with the Boyce Thompson Institute, measured higher caffeine accumulation in Robusta than in Arabica, and World Coffee Research says the same.
- Excelsa sits with Liberica in botany. This matched the sources we read on 29 September, but a 2025 Kew study we had missed already treated excelsa as its own species, Coffea dewevrei. We corrected it on 6 October 2026, as the next section explains.
- Bourbon is a plant name, not whiskey. French missionaries took it from Yemen to Bourbon Island, now La Réunion, in the early 1700s, and the island gave it its name.
- Catimor comes from Caturra and the Timor Hybrid, crossed to breed a compact plant that resists coffee leaf rust.
- Arabica reached the coffee trade through Yemen. It's native to Ethiopia, and historians believe seeds were first taken from its southwestern forests to Yemen.
- All four main types grow in the Philippines. PSA records output of Arabica, Robusta, Excelsa and Liberica in every year from 2010 to 2025.
- Civet coffee raises animal welfare questions. A 2024 study of 29 civet coffee tourism sites in Bali found no civet that met all of the five freedoms used to judge animal welfare.
- The civet route doesn't promise better taste. A 2021 paper argues that differences may come from the coffee species and from wild civets picking ripe cherries, not from digestion.
Sources for this section: World Coffee Research, History of Arabica, read 29 September 2026; World Coffee Research, History of Robusta, read 29 September 2026; World Coffee Research variety catalog: Bourbon and Caturra, read 29 September 2026; Davis and colleagues, Nature Plants, 2022, PMID 36522448; GBIF Backbone Taxonomy, entry for Coffea excelsa, read 29 September 2026; Philippine Statistics Authority, OpenSTAT crop production table, read 29 and 30 September 2026; Perrois and colleagues, Planta, 2015, PMID 25249475; Lewis-Whelan and colleagues, Journal of Applied Animal Welfare Science, 2024, PMID 37853780; Lachenmeier and Schwarz, Foods, 2021, PMID 34207718; Davis and colleagues, Nature Plants, 2025, PMID 40781487.
How much coffee does the Philippines grow, by type?
In 2025, the latest full year in PSA's table, Philippine farms produced 35,646 tonnes of green coffee beans. Robusta accounted for 72.2 percent, Arabica 22.0 percent, Excelsa 5.6 percent and Liberica 0.2 percent. Mindanao grew 83.5 percent of the total, and Davao Region grew 13.6 percent. The Liberica figure is incomplete, since the 2025 table has no Liberica number for Sulu or Iloilo from July to December; in 2024 Liberica was 0.6 percent.
Method: each figure is a type's 2025 output of green coffee beans divided by the national total in the PSA table, read on 30 September 2026. The table splits green beans by type for every year from 2010 to 2025, and the types add up to the national total in each year. The Philippine bean guide has the table by province.
Source for this section: Philippine Statistics Authority, OpenSTAT crop production table, read 29 and 30 September 2026.
What searches bring readers here?
Across the 28 days ending 27 September 2026, Google showed this site's pages 39 times in its results, and they earned 1 click. Search Console named the search behind only 2 of those showings. Google hides searches made by no more than a few dozen people over two to three months, to protect their privacy.
One named search was robust coffee, which reached the Robusta page. That page now explains how the everyday word robust differs from the coffee name Robusta. The Arabic coffee comparison showed up most often, 28 times, more than every other page put together.
Source for this section: Google Search Central Blog, post on Search Console performance data, 19 October 2022.
What does the guide leave out?
It doesn't rank farms, sellers or brands, and it doesn't publish a price list. Prices change, and a seller's current listing is the right place to check them. It gives no caffeine amount per cup, because that depends on the coffee, how much of it you use and the brewer.
No page is based on a tasting panel, a farm trip or a paid review. Taste words on the bean pages describe broad tendencies, and the dot scales on the home page are illustrative, not lab scores.
How do you report a mistake?
To report a mistake, use the contact options on the joesblend.com about page, which gives an email address and a Facebook message option. Say which page and which sentence you mean, and if you've got a source that shows the right fact, add it.
A changed fact or a new section moves that page's Updated line to the day of the change, and corrected facts are listed on this page. Small wording and layout edits don't move the date.
Sources
- World Coffee Research. History of Arabica. Read 29 September 2026.
- World Coffee Research. History of Robusta. Read 29 September 2026.
- World Coffee Research variety catalog: Bourbon and Caturra. Read 29 September 2026.
- Davis AP, Kiwuka C, Faruk A, Walubiri MJ, Kalema J. The re-emergence of Liberica coffee as a major crop plant. Nature Plants 8, 1322 to 1328 (2022). doi: 10.1038/s41477-022-01309-5. PMID 36522448.
- GBIF Backbone Taxonomy. Coffea excelsa A.Chev., listed as a synonym of Coffea liberica var. dewevrei. Read 29 September 2026.
- Philippine Statistics Authority, OpenSTAT. Non-Food and Industrial Crops: Volume of Production, by Region, Province, Quarter, and Semester, 2010-2026, coffee by type (green coffee beans), annual figures for 2010 to 2025 and quarterly figures for 2024 and 2025. Read 29 and 30 September 2026.
- Perrois C, Strickler SR, Mathieu G, Lepelley M, Bedon L, Michaux S, Husson J, Mueller L, Privat I. Planta 241, 179 to 191 (2015). doi: 10.1007/s00425-014-2170-7. PMID 25249475.
- Lewis-Whelan B, Ardiansyah A, Roberts PD, et al. Welfare and Management of Civets in Civet Coffee Tourism Plantations. Journal of Applied Animal Welfare Science 27, 561 to 574 (2024). doi: 10.1080/10888705.2023.2270414. PMID 37853780.
- Lachenmeier DW, Schwarz S. Digested Civet Coffee Beans (Kopi Luwak): An Unfortunate Trend in Specialty Coffee Caused by Mislabeling of Coffea liberica? Foods 10, 1329 (2021). doi: 10.3390/foods10061329. PMID 34207718.
- Google Search Central Blog, post on Search Console performance data filtering and limits, 19 October 2022. Read 29 September 2026.
- Davis AP, Shepherd-Clowes A, Cheek M, Moat J, Wei Luo D, Kiwuka C, Kalema J, Tchiengué B, Viruel J. Genomic data define species delimitation in Liberica coffee with implications for crop development and conservation. Nature Plants 11, 1729 to 1738 (2025). doi: 10.1038/s41477-025-02073-y. PMID 40781487. Read 6 October 2026.
Questions from the coffee shelf
Does the guide list coffee prices?
No. Prices change, and a seller’s current listing is the right place to check them. The guide also gives no caffeine amount per cup, because that depends on the coffee, the amount and the brewer.
Is AI used to write these pages?
Yes, for first drafts. Drafts pass automated checks before publishing, and on 29 September 2026 ten main claims were checked against sources.
Where do the Philippine harvest figures come from?
From the Philippine Statistics Authority’s OpenSTAT tables. The pages use its green-coffee-bean figures by type for 2025, the latest full year, and keep 2021 as history. Liberica figures lead with 2024, because the 2025 Liberica rows have gaps. Each figure names its source.
Does this site review coffee brands?
No. It explains beans, roasts and growing areas. It doesn’t score cafes, farms or other brands.
How can I flag an error?
Use the contact options at joesblend.com. Name the page and the sentence, and include a source if you can.
Updated 6 October 2026