--- product_id: 1188290 title: "Buttermilk C21 - 5 Packets" brand: "new england cheesemaking supply company" price: "NZ$40" currency: NZD in_stock: true reviews_count: 9 url: https://www.desertcart.nz/products/1188290-buttermilk-c21-5-packets store_origin: NZ region: New Zealand --- # Adjustable fermentation time 5 individual culture packets Customizable thickness & texture Buttermilk C21 - 5 Packets **Brand:** new england cheesemaking supply company **Price:** NZ$40 **Availability:** ✅ In Stock ## Summary > 🥛 Elevate your kitchen game with customizable, artisanal buttermilk culture! ## Quick Answers - **What is this?** Buttermilk C21 - 5 Packets by new england cheesemaking supply company - **How much does it cost?** NZ$40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/1188290-buttermilk-c21-5-packets) ## Best For - new england cheesemaking supply company enthusiasts ## Why This Product - Trusted new england cheesemaking supply company brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Use:** Perfect for drinking, baking, or blending into refreshing summer slushies—your kitchen’s secret weapon. - • **Tailor Your Tang:** Control acidity and flavor by tweaking time & temperature for your perfect buttermilk vibe. - • **Pure & Traditional:** Old-fashioned New England style buttermilk culture for authentic, thick, creamy results. - • **Long-Lasting Supply:** Five packets per box means endless homemade buttermilk creations without last-minute runs. - • **Flexible Batch Sizes:** Use 1-2 quarts of skim or whole milk per packet—scale your craft with ease. ## Overview Buttermilk C21 offers five packets of traditional New England style buttermilk culture that lets you craft thick, tangy buttermilk from 1-2 quarts of skim or whole milk. Adjustable fermentation time and temperature empower you to customize flavor and texture, making it ideal for drinking, cooking, or baking. This versatile, long-lasting culture is a must-have for millennial food artisans seeking authentic, fresh dairy experiences at home. ## Description This buttermilk culture makes a thick, old-fashioned New England Style, Buttermilk. For each batch, you can use 1-2 quarts of skim or whole milk, depending on your desired thickness. The amount of character (flavor, texture) can be customized by increasing or decreasing the setting time and/or temperature. ## Features - This is a thick, old-fashioned New England Buttermilk which can be made with skim or whole milk. - The amount of character (acid, flavor, texture) can be controlled by increasing or decreasing time and/or temperature. - Each packet sets 1-2 quarts of milk and makes 1-2 quarts of buttermilk. We recommend using 1qt. If you would like to use 2qts, simply give it a little more time to set. - Includes 5 packets. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0064OLQQ8 | | Best Sellers Rank | #48,338 in Grocery & Gourmet Food (See Top 100 in Grocery & Gourmet Food) #9 in Buttermilks | | Brand Name | New England Cheesemaking Supply Company | | Container Type | Bag | | Customer Reviews | 4.7 4.7 out of 5 stars (342) 4.7 out of 5 stars | | Dairy Based Drink Variety | Buttermilk | | Flavor | Unflavored | | Item Form | Powder | | Item Volume | 1 Quarts | | Manufacturer | New England Cheesemaking Supply Co. | | Number Of Items | 1 | | Package Weight | 0.02 Kilograms | | Part Number | 11314 | | Pasteurization Type | Pasteurized | | Plant Or Animal Product Type | dairy | | Product Shelf Life | 2 Years | | Special Ingredients | lactose, lactococcus lactis subsp. lactis, lactococcus lactis subsp. cremoris, lactococcus lactis subsp. biovar diacetylactis, leuconostoc mesenteroides subsp. cremoris | | Sweetness Description | Not Sweet | | Unit Count | 5.00 Count | ## Product Details - **Brand:** New England Cheesemaking Supply Company - **Flavor:** Unflavored - **Item Form:** Powder - **Number of Items:** 1 - **Unit Count:** 5.00 Count ## Images ![Buttermilk C21 - 5 Packets - Image 1](https://m.media-amazon.com/images/I/61VIdeSGqFL.jpg) ![Buttermilk C21 - 5 Packets - Image 2](https://m.media-amazon.com/images/I/61g+6ftCI-L.jpg) ## Questions & Answers **Q: How long it takes ? 20 hours past since I put the culture in the whole organic milk but nothing happen--still very liquid ; room temp70F!** A: Buttermilk takes a warm environment. Mine to like 48 hours at room temp. I ended putting it in my yogurt marker and ready in 7 hours **Q: It is very hot outside right now and I've noticed all of my packages from amazon are hot. Do they ship this with ice packs ? is it kept cool ?** A: No ice pks, but it needs moisture and 85 degrees to activate. I live in Florida and mine was still good although I immediately store it in the freezer. **Q: How thick is this supposed to be? Mine's so thick it's almost a custard yogurt, not a drinkable buttermilk, after just 12 hours at 72 in a thermos.** A: Try stirring it up. Mine is thick just like that, but when I stir or vigorously it blends together and gets thin enough to drink. **Q: Recipe using instant pot?** A: I only use whole milk! I just heat the milk to about 90 degrees ( it cools some when you add it to the mason jar that I use), pour it into a mason jar, add the culture, wait 2 minutes and stir. Then I add whole milk powdered milk and mix well. Then I put a paper tower around the top and wrap a double thickness towel around the mason jar with a rubber band to hold it in place and hold in the heat and let it sit for 24 hours. At 24 hours, I open the top and stir it well and let it sit for another 24 hours. My buttermilk is thick and tastes light years better than ANY store bought buttermilk. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great culture. Not sure it is any better than using commercial as a culture. But it is a great product. *by on Reviewed in the United States April 24, 2018* I'm a buttermilk aficionado. I drink it, not just bake with it. You won't go wrong with this culture. Although I do not see any improvement over using store-bought buttermilk as a starter. I've read that store-bought cannot be re-cultured repeatedly, but I'm not sure that's true. I'm gonna test it soon and will report back.The quality of the resulting buttermilk with this culture is as good as any other. No better, no worse, in my view. Since it can be recultured indefinitely, having a supply of this in the freezer ought to last a long, long time! My suggestions follow.1) I have not seen any reason to fuss with the heating step. It can't hurt (unless you burn the milk, which is easy to do). I just don't see any need. I mix the starter culture in with fresh milk, and let is sit at room temperature until done. This can be shorter or longer depending on the ambient temperature. In the winter, I do use a yogurt culturing warmer. I have one large enough to accomodate a quart of yogurt, and I just set my canning jar filled with cultured milk into the warmer. Keeping an eye on it in case it gets overly warm. In the summer, I brew at night, so it's not too warm in the room.2) I have had bad results using ultra-pasteurized milk. I bought it because it was "organic", but the ultra-pasteurization sterilizes it to the point of being dead I think. I prefer organic, but not ultra-pasteurized. 1% milk does fine, no need for whole or even 2% to get a rich creamy, thick buttermilk.3) Use plenty of starter. I use the packets to culture one quart or less the first time. From there, I use about a 1:4 ratio of cultured milk to fresh. That's probably overkill, but it costs nothing to use more at that point, and it seems to work out well.4) I was initially disappointed in my homemade buttermilk because it lacked the zip or tang that commercial buttermilk offers. Duh. I read the ingredients and saw that they add sodium citrate and salt to commercial (as well as powdered milk, which I will NOT do!). I got some sodium citrate here on Amazon (https://amzn.to/2JjfQRm) and add 1/2 tsp per quart, more or less. I add a couple of dashes of pink Himalayan salt also. The sodium citrate adds a slight zing, and also acts as an emulsifier, resulting in a less grainy texture for the finished product.5) I use an immersion (stick) blender to whiz the finished product before sticking it in the fridge to chill. Adds additional smoothness to the texture. If the milk has cultured to long and separated, this will also bring it back together, though it may need to be repeated from time to time in that case.6) For a refreshing summer treat, try putting some of your freshly fermented buttermilk into a blender with ice and a few sprigs of mint and make a slushy. Soooooo good! ### ⭐⭐⭐⭐⭐ EXCELLENT Buttermilk! *by on Reviewed in the United States April 14, 2026* I love buttermilk, but I've never made it myself. I was skeptical, but this stuff is amazing. I followed the directions and used 1 packet with 2 quarts of whole milk in late afternoon. By morning I had yummy tasty buttermilk. Highly recommend. ### ⭐⭐⭐⭐⭐ Excellent *by on Reviewed in the United States May 24, 2025* Excellent! I followed the clearly described instructions and the next morning I have thick and delicious butter milk. I used 52 oz of Fairlife whole milk. Brought it to temperature on a gas stove in a stainless steel pot using an accurate candy thermometer. Instructions say 86 degrees, I had it at about 84. Added a packet and let it sit for two minutes then used a whisk to stir it in. Transferred it to a large two quart mason jar on my counter top over night. House is 74 degrees inside. (Did not add powdered milk). Worked great! ## Frequently Bought Together - Buttermilk C21 - 5 Packets - Mesophilic Direct Set Cheese Culture, 5-Pack - Liquid Rennet - Animal Rennet for Cheese Making (2 oz.) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nz/products/1188290-buttermilk-c21-5-packets](https://www.desertcart.nz/products/1188290-buttermilk-c21-5-packets) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-06-02*