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🥛 Twist, strain, ferment—your DIY kefir revolution starts here!
Masontops Kefir Lid Starter Kit transforms any wide-mouth mason jar into a versatile kefir fermenter with a unique 2-position twist lid that controls airflow for optimal fermentation. Featuring a built-in 1/4 cup grain measuring space and a strainer bottom for easy pouring, this 2-pack includes color-coded lids to track your batches. Perfect for millennial home fermenters seeking a simple, efficient, and stylish way to craft probiotic-rich kefir at home.









| ASIN | B07RDXY2CV |
| Best Sellers Rank | #14,328 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #24 in Brewing & Fermentation Equipment |
| Brand | Masontops |
| Brand Name | Masontops |
| Closure Type | Twist-closure |
| Color | Blue/Clear/Green |
| Customer Reviews | 4.5 out of 5 stars 2,872 Reviews |
| Item Dimensions L x W | 3.6"L x 3.6"W |
| Item Weight | 5.6 ounces |
| Manufacture Year | 2022 |
| Manufacturer | Masontops |
| Manufacturer Part Number | KC2WGB |
| Material | Glass |
| Material Type | Glass |
| Model Number | KC2WGB |
| Number of Pieces | 2 |
| Product Dimensions | 3.6"L x 3.6"W |
| Product Style | Compact |
| Shape | Round |
| Style | Compact |
| UPC | 829188000899 |
| Unit Count | 2 Count |
J**R
Great product
Works great, makes kefir making process easy
T**E
Used for both parts of the process Love it
These lids are perfect for my homemade kefir. The best part is that two position lid were you can set it slightly open for when it's fermenting. Then closed when in the fridge.
J**L
Pouring filtering lids
These are wonderful!
Y**N
Good for Water Kefir but not great for Milk Kefir
I like this product except that the strainer is too fine for milk kefir. This is probably better suited for only water kefir. Nice quality lids.
J**J
Kefir Made Easy
Works as described. It has really made Kefir starting very easy. Well made and nicely fits wide mouth mason jars.
A**R
Just what I needed, I now have 8 lids
I have a process where blue is used for source kefir or kombucha, and green for double-fermentation and refrigerated drinkables. For kefir, I never use the blue to strain my source because it'll clog up. You need a nylon-mesh strainer and mechanical force to push the curds through with a silicone spatula. For the green lids, those work fine. My favorite part is the ability to close and open them, and popping them off is easy if I want to clean them.
L**E
Needs bigger holes to work for milk kefir
I think this would be great for water kefir, which is of a thinner consistency, being just sugar water, and with smaller grains that don't clump together or create curds. Unfortunately, I've been trying to use it for a couple of days with my milk kefir, and it's frustrating enough I'm not sure I'll keep it. Milk is thicker than water, and thicker still once fermented. The grains themselves are somewhat big, they tend to clump together, and the milk forms a certain amount of curds when culturing. This is an ingenious setup, enabling you to twist the lid slightly open while the ferment is active, then closed for storing or shaking (my attempt to break things up to enable better straining) and is entirely removable for straining and pouring. But that's where the difficulty comes in--straining and pouring. Cultured milk kefir does not easily flow through these very small holes, especially as they are instantly blocked by the grains and curds that surround the grains. I tried closing the unit and shaking hard to break it all up, but I still find I need to pour a bit out, pull back and shake it more or rap it against the counter to dislodge everything blocking the filter, then pour/shake some more out, etc. I need to do this a whole bunch of times even when I only have a cup or two of milk, and my kefir is not over-fermented. This really needs bigger holes.
C**E
Amazing
I love them. They are amazing. I got so tired of straining the old way and these make it super convenient for straining and just pouring in general.
J**K
Better than getting a Kefirko!
I love it! I didn’t have to use a separate strainer to make my water kefir. Straight from my jar to the bottle. I found the white cover a bit tricky to open at first as it gets stuck but I figured out how it actually works and didn’t have anymore issues. I have a 2L wide mouth mason jar pitcher and i have used the cover for the juice i made as well. As long as you have any size mason type glasses or jars, this will definitely be better than buying an expensive Kefirko.
M**E
The Strainers Block up Too Easily
I bought the jars to go with the strainers thinking things were going to be simpler than using a handheld strainer; not so, the strainers block up really easily and you can't get the kefir out. When a handheld strainer blocks up, you use a spoon or spatula to move the grains around to get things flowing; you cannot do this from the inside of the jar, all the jars and strainer kits are left on the shelf unused.
M**L
Very useful
Very handy and useful in making Kefir. Fits standard Mason jar securly and with rubber seal inside, there are no leaks or spills. The lid opens to either remove completely (when pouring) or when making kefir - giving the required air without allowing dust or any contaminant into the jar. Pouring from the jar is very easy, by removing the opaque cap - and it strains at the same time. Very easy to clean Highly recommend
M**A
Perfectos
Me han gustado muchísimo, para el kéfir de agua son estupendos. Me gustan más que el kefirko, que también lo tengo. El filtro de Masontops está mejor diseñado, nunca se escapa nada. Son aptas para los botes de 86 mm, yo los compro en Koro o aquí mismo en Amazon. Ojo, hay que aprovechar cuando los bajan de precio, yo los he conseguido por 14,99.
N**Y
Bueno!!!
He leído comentarios negativos..ya sea por el precio o por lo que hace pero creo que igual y era gente que no sabía como se hacía el kéfir previamente.. es algo péquelo y sencillo? Si pero para lo que guardar, tener y colar el kéfir es excelente! Jajaja vale la pena y yo estoy muy contenta sobretodo para el kefir de agua!
Trustpilot
1 month ago
3 weeks ago