Cold brew, butter infused coffee

Last night as I was inputting my food data into Myfitnesspal my eye was drawn by a forum post about butter coffee.

I like butter, I thought, I like coffee, maybe this is for me.

From the details, it turns out you put a good wodge of unsalted, grass-fed butter in a hot black coffee and run it through the blender to emulsify it and stop getting a thick layer of melted butter on top of normal coffee.

The idea is apparently this is a low-carb diet friendly breakfast that helps you feel full for most of the day. It is mainly hawked in the US by someone promoting “bulletproof coffee” and most of the other links about it seem to link back to him.

Not even sure whether butter in the UK is “grass fed” or not and only had salted butter in the fridge, so didn’t make a rush on this idea. I also have a few concerns about putting butter in the blender as that looks much harder to clean out than the smoothies it usually gets used for.

However, whilst reading around on butter coffee I also hit on a few links for cold brew coffee, and that looked both more promising and possible to make with everything I already had in the house at 10pm.

There were lots of complicated things you could use – including this beautiful but expensive and house-filling lab kit and Cory Doctorow’s combo of bucket and tights – but reading a bit through the comments, the easiest thing to do was put the coffee in the camping cafetière in the fridge overnight. It took a while to find a sensible amount of metric quantities – the American sites mostly have quarts and pounds – but in the end I put 75g of coffee with 500mls of water and left it going.

This morning after a bit of a stir, so the grounds didn’t get caught on the mesh, I pushed the plunger and poured, then diluted the mix with hot water for my first three cups of coffee today. The first one slightly less than 1:1, the next one slightly more, the third even more.

The flavour – well, nothing particularly special. I am getting a bit more of a caffeine rush, eventually.

All in all, the faff, the extra use of coffee, which I already spend too much money on, and the mess of using a French press instead of a filter machine, mean this isn’t something I’m in a hurry to repeat.

Perhaps the butter next week…

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