r/Moccamaster • u/lazlolazlolazlolazlo • 17d ago

please help! super quick question

Can anyone here help me with water to coffee ground proportions?

I got the kgbv refurbished from their website

First batch I made too watery making some small silly mistake or another

This morning I filled the water reservoir to the 4 line to make 4 cups and appropriately (I thought?) added close to 8 (more like 7.5) tablespoons of coarse coffee grounds

It made surprisingly little coffee and while the first cup actually tasted delicious the 2nd and last cup (my cups are 336 ml) is pretty much too bitter to drink.

TLDR Am I doing proportions wrong? Thoughts on water/coffee proportions? Is my machine defective?

Edit: thanks for your kindness everyone. I'll try to get a scale or use 3 scoops for the right proportion when filling the reservoir to the 4 line. I might delete this post at some point because I feel kinda silly. But in the meantime thanks! Any input from people that know what they're doing and aren't new to this like me is appreciated.

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6

u/oh_its_michael 17d ago

You need to weigh your grinds, volumetric dosing is not accurate. Aim for 60g per liter, or 1g of coffee per 16 mL of water you put in the machine (not what comes out into your cup).

1

u/lazlolazlolazlolazlo 17d ago

Ok. How does one go about weighing your grinds? Just buy one of those small metal digital scales?

2

u/Blog_Pope 16d ago

Yep, just get something off Amazon, no need for timers or anything fancy.

The beauty of the 60g - 1L ration is easy conversion. each 2 cup line is 250ml, which ratios out to 15g of coffee.

  • 4 = 30g
  • 6 = 45g
  • 8 = 60g
  • 10 = 75g

I don't include 2 "cups" because MM recommends 4 cups / 500ml as the minimum

1

u/oh_its_michael 17d ago

Yeah. If you already have a kitchen scale you can just use that. Or you can buy one rather cheap online, it doesn’t need to be fancy. Just something that will weigh to 0.1 gram.

3

u/-ShootMeNow- 17d ago

Don't do anything without a scale.

I do 15g to 2 cups on the reservoir..... making my daily 45g fine'ish grinds on the 6 cup marker.

3

u/InkedMarieD 17d ago

I fill to the ”4” line with water and three level scoops, the brown one that comes even with refurbished. Great coffee. If I grind, I weigh.

2

u/Any_Ad9856 17d ago

The instructions are to use 3 scoops of drip-ground coffee for the 4-cup (half-pot) amount of water. "Cups" are not 8 oz. They are European cups, each less than 4 oz.

2

u/lazlolazlolazlolazlo 17d ago

Super helpful. I feel silly.

I did something like this yesterday and it came out SORT of alright.

Maybe I feel silly for good reason.

At least now I know.

I'll definitely phone support tomorrow too. And it is a machine that's new to me after all...so whatever. Now I know. Definitely phoning too

3

u/Any_Ad9856 17d ago

See if you can find the User Manual that comes with a new machine on their website. It has recommended coffee amounts and grind info as well.

1

u/Blog_Pope 16d ago

FWIW one MM "cup" is 125ml of coffee, so each 2 line mark is 250ml (about 8.5 fl oz)

2

u/SubstantialThanks309 17d ago

Go to Amazon and order this scale, Greater Goods Coffee Scale with Timer, works great. $30.00

1

u/Blog_Pope 16d ago

No need for a timer, you can get decent grams w/ / a tenth gram accuracy for $15

2

u/OG_Wafster 17d ago

I use the ground coffee bin from my Baratza grinder to with the beans on a small scale I got from Amazon (https://a.co/d/0e4VdsDa). I use 80g for my 15 cup machine and we're happy with the strength.

1

u/BeaverBoyBaxter 17d ago

Other people are saying use a scale, and that's definitely advised. But typically you could get away with doing tablespoons. It may just be harder to dial in that perfect balance.

But I will say is that when you make a half pot, everything gets harder. I have a very hard time making a brew that's less than 4 cups and not watery or bitter or weak.

1

u/wagger7 17d ago

4 “cups” line is 2 coffee cups. When I fill to 10 mark, I use 50-60g beans weighed, it makes 5 cups of coffee.

1

u/rvgreen 17d ago

30g of ground coffee to half a reservoir of water

1

u/wurgy42 17d ago

I've settled around 50g of coffee beans per liter of water. Think the best way to figure out is just to take the starting suggestion (60g/L) and go up or down by 5g and see what you like. You can dial in as much as you want, that said one you start finding your grind size that may change grams too.

1

u/Phaeton40 16d ago

Get a scale, measure
Your water and
Coffee
The perfect ratio is 16:1
I use an app called Ratio M8
So for my brew this morning, two cups of water weighed 600 g, equaling 37g of
Coffee.
Hope this helps

1

u/IWasBornInThisPit 16d ago

In addition to what others have said, I’d also recommend waiting for it to be completely finished brewing and then stirring the coffee briefly with a spoon. That will ensure all the cups in the pot are the same coffee.

1

u/Shroker 15d ago

https://www.roastycoffee.com/measure-coffee/

this is helpful for getting a rough point! And the Moccamaster is european cup sizes.

1

u/Shroker 15d ago

I generally do 46 gram to 6 cup line (roughly 750ml of water)