Boston
Online, delivered nationwide
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Instacart
city-wide Stock not confirmed
Opened the Boston grocery delivery page, which loads with the title 'Grocery Delivery Near Me in Boston, MA' and the Star Market Boston page on the same site, which loads with the title 'Star Market Delivery or Pickup in Boston, MA'. No plant milk products were visible without a delivery address.
Potato or tapioca starch: no list was read, so not known
Quick delivery apps
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Uber Eats
city-wide Stock not confirmed
Opened the Boston grocery category page, which loads with the title 'Fast Grocery Delivery in Boston' and lists Star Market, Wegmans, Costco, CVS, 7-Eleven and Gopuff as Boston storefronts. Individual product listings are gated behind a delivery address, so no plant milk was seen.
Potato or tapioca starch: no list was read, so not known
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DoorDash
city-wide Stock not confirmed
Opened the Boston convenience store delivery page, which names Boston, MA and lists Star Market, Wegmans, CVS, Walgreens and 7-Eleven storefronts. Product listings are gated behind a delivery address, so no plant milk was seen.
Potato or tapioca starch: no list was read, so not known
Supermarkets
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Whole Foods Market
Charles River Plaza, Cambridge St Stock seen on the page
Brands on the page: 365 by Whole Foods Market
Opened the Charles River Plaza store page, which loads with the title 'Charles River Plaza | Grocery Store in Boston 02114-2786' and gives a Cambridge St, Boston, MA 02114 address; a deliberately fake store URL on the same host returned a 404 'Page Not Found', so the store page is real. The chain's own 365 Original Oatmilk product page loads with a full ingredient panel.
Ingredient list read on 2026-09-09
Oatmilk (Filtered Water, Oats), Contains 2% Or Less Of The Following: Sunflower Seed Oil, Tricalcium Phosphate, Potassium Phosphate, Calcium Carbonate, Sea Salt, Gellan Gum, Vitamin A Palmitate, Ergocalciferol (Vitamin D2), Riboflavin (Vitamin B2), Cyanocobalamin (Vitamin B12).
Potato or tapioca starch: not named in the list read
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Whole Foods Market
Symphony, Westland Ave Stock not confirmed
Opened the Symphony store page, which loads with the title 'Symphony | Grocery Store in Boston 02115-4558'. The branch page itself lists no products, so stock at this branch was not confirmed.
Potato or tapioca starch: no list was read, so not known
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Star Market
city-wide Stock not confirmed
Opened the chain's own Boston locations page, which loads with the title 'Star Market Locations in Boston, MA' and lists Boston branches on Huntington Ave, Commonwealth Ave, Causeway St and Kilmarnock St. The locator page lists no products, so stock was not confirmed.
Potato or tapioca starch: no list was read, so not known
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Roche Bros.
Downtown Crossing Stock not confirmed
Opened the chain's own Downtown Crossing store page, which loads with the title 'Boston, MA Downtown Crossing Grocery Store' and names a Summer Street, Downtown Boston address. The page lists no products, so stock was not confirmed.
Potato or tapioca starch: no list was read, so not known
Health food and vegan shops
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Cambridge Naturals
Cambridge Stock seen on the page
Brands on the page: Oatly, Minor Figures
Opened the shop's own search results for oat milk, which load with the title 'oat milk - Cambridge Naturals' and name Oatly Full Fat and Minor Figures products. No ingredient panel appears in the listings.
Potato or tapioca starch: no list was read, so not known
Direct from the brand
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Planet Oat
nationwide Stock not confirmed
Brands on the page: Planet Oat
Opened the brand's Where to Buy page, which loads with the title 'Where to Buy | Planet Oat', and the Products and Oatmilk pages on the same site. The store finder and the ingredient tabs are rendered by JavaScript, so no Boston stockist and no ingredient list could be read.
Potato or tapioca starch: no list was read, so not known
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Elmhurst 1925
nationwide Stock seen on the page
Brands on the page: Elmhurst 1925
Opened the brand's Oat Products collection page and its Unsweetened Oat Milk product page, both of which load, and read the product's Shopify JSON. The body text is marketing prose about minimal ingredients, not an ingredient panel, so none was recorded.
Potato or tapioca starch: no list was read, so not known
Local shops and cafes
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City Feed and Supply
Jamaica Plain Stock not confirmed
Opened the shop's own site, which loads with the title "Jamaica Plains' favorite neighborhood grocery, cafe, and deli - City Feed and Supply". The site carries no product listings, so plant milk stock was not confirmed.
Potato or tapioca starch: no list was read, so not known
Other cities
Thrive Market was rejected: every request to thrivemarket.com returned HTTP 403, so no page could be opened. MOM's Organic Market was rejected as a Boston entry: its own Massachusetts page lists only Burlington and Natick, neither of which is in Boston. Harvest Co-op was rejected because it closed in 2018. Ingredient panels are scarce on these sites: Oatly's own product page states that ingredients differ between markets and are therefore not published, Planet Oat's pages are rendered by JavaScript, and Elmhurst's product page and Shopify product JSON carry only marketing prose about minimal ingredients, not a list. Only one verbatim ingredient list could be read. Market Basket was dropped: its own Store Locations page loads but names no Boston branch in readable markup, so a Boston branch could not be confirmed.