Why would any one brew beer in a dimijohn, can’t imagine trying to put 100 grams dry hop in said vessels, if your doing 1 gallon full mash recipes just get a 10 litre fv with lid and with a bung hole for an air lock, cheap as chips and saves a lot of ball ache for dry hopping and siphoning off when bottling , save ya demijohns for wine and liquors
I keep all my brew stuff in a small cupboard in the kitchen, very convenient space wise in a small house. I use the 5L bottle the water comes in rather than a glass DJ, and put the lid back on as the airlock which does the job fine. (Screwed down tight towards the end it also allows some CO2 pressure to build before cold crashing to avoid drawing air in). The 2" wide lid is ok for hopping in a sock, alternatively a hop tea poured straight in works too, I have used both methods. I wouldn't be using as much as 100g dry hop, more like 10-20g, thats one good thing about doing a small batch and small amounts of grain are manageable for BIAB plus each brew only costs a few quid. Siphoning with a silicone hose is a piece of cake and using 2L bottles it's all bottled in minutes. Not a problem at all.
Exactly what I do.
