My LHBS says this on their website: "Lalvin 71B is a low foaming strain that is a very rapid starter" - Lalvin 71B Wine Yeast
I haven't used that yeast yet, so I don't have any personal experience as far as whether it foams a lot.
If you used a whole packet of yeast for a 1 gallon batch, and you had a yeast starter, then those yeastie beasties had a huge colony and were raring to go and probably just burned through the sugar really quickly.
If you get the same reading with your friend's hydrometer, then go ahead and rack and get it under airlock. At this first racking after fermentation is complete, I add kmeta, which in your case would probably be 1 crushed campden tablet (it's easier than trying to measure out the amount of powdered kmeta). Then let it sit for a couple of weeks for the gross lees to fall out. (If I rack before fermentation is complete, I skip the kmeta until it's done fermenting.)
In 2 to 3 weeks, when you rack off the gross lees, make sure to degas the wine. I did a few 1 gallon wine kits and the directions said to cover the end of the jug with your sanitized hand and shake the jug a bit to get the degassing started. You can also stir it up either by hand or with a drill stirrer for a minute or so. Once you're done stirring, add the airlock.
Jumpstarting the degassing process will help it to clear faster, too.
When it's aging, add kmeta (1 crushed campden tablet for 1 gallon) about every 3 months. If you decide to backsweeten before about 9 months, make sure to also add potassium sorbate to prevent refermentation, before adding the sugar. While rare, there could still be yeastie beasties alive after 9 months, so if you don't use sorbate before backsweetening, I would recommend waiting a few days before bottling to make sure you don't get renewed fermentation.
I have a peach that has been aging now for close to 9 months. I do want to backsweeten it, so I need to decide if I'm going to trust that 9 months is long enough or wait until a full year before backsweetening. I have always used sorbate so this is the first time I'm trying the time method instead.
I haven't used that yeast yet, so I don't have any personal experience as far as whether it foams a lot.
If you used a whole packet of yeast for a 1 gallon batch, and you had a yeast starter, then those yeastie beasties had a huge colony and were raring to go and probably just burned through the sugar really quickly.
If you get the same reading with your friend's hydrometer, then go ahead and rack and get it under airlock. At this first racking after fermentation is complete, I add kmeta, which in your case would probably be 1 crushed campden tablet (it's easier than trying to measure out the amount of powdered kmeta). Then let it sit for a couple of weeks for the gross lees to fall out. (If I rack before fermentation is complete, I skip the kmeta until it's done fermenting.)
In 2 to 3 weeks, when you rack off the gross lees, make sure to degas the wine. I did a few 1 gallon wine kits and the directions said to cover the end of the jug with your sanitized hand and shake the jug a bit to get the degassing started. You can also stir it up either by hand or with a drill stirrer for a minute or so. Once you're done stirring, add the airlock.
Jumpstarting the degassing process will help it to clear faster, too.
When it's aging, add kmeta (1 crushed campden tablet for 1 gallon) about every 3 months. If you decide to backsweeten before about 9 months, make sure to also add potassium sorbate to prevent refermentation, before adding the sugar. While rare, there could still be yeastie beasties alive after 9 months, so if you don't use sorbate before backsweetening, I would recommend waiting a few days before bottling to make sure you don't get renewed fermentation.
I have a peach that has been aging now for close to 9 months. I do want to backsweeten it, so I need to decide if I'm going to trust that 9 months is long enough or wait until a full year before backsweetening. I have always used sorbate so this is the first time I'm trying the time method instead.