I had that issue when I was using a hand corker,
switching to a floor corker solved my problems.
Anyone ever had this problem?
Is it defective corks, this happen 4 times in a roll.
See attached photo.
TIA
What kind of cork are you using and what size cork? I have had some issues lately with the "three piece" cork, i.e. natural cork ends with agglomerated cork center. I talked to the supplier, not the retailer, and they told me that they recently changed manufacturers. I had never had a problem with this type of cork in the past, using an Italian floor corker with #9 x 1.75" corks. I was having a miscue with about 10% of them so I returned the balance of 1000 corks to my retailer for a credit against the purchase of synthetic corks.
As far as technique is concerned, I find I have less problems if I load the cork into the corker, stand next to the corker for most leverage and then insert in one rather swift motion. I have not used the hand corker for many years but when I did I stood over the bottle with the bottle trapped between my feet, pushed down on the corker until I felt resistance and then, again in one swift motion with as much leverage as I could gather, pushed down on the two handles.
"I suppose I need to measure one of the corks from what I think are smaller bottles to verify, but I don't have the calipers at hand to be precise enough."
Measure the circumference with a piece of string and divide by pi (3.14159265).
I am going to offer perhaps another possibility and the reason for it. Some of the bottles are made for smaller corks.
Reasoning: Remember my wife and I make about 100 gallons of wine per year, well below what some other folks do, but a reasonable amount to notice a thing or three. We normally bottle two or three varietals on a given bottling day. That means somewhere between 4 and 6 carboys usually at a time. We have a fairly new, less than two years old, Italian floor corker. For the last bottling session, we did only two carboys, approximately 6 out of the 60 bottles had issues corking, somewhat similar to the ones shown above and I knew each of them was going to have an issue as soon as I pushed the handle down. They felt funny. So, pull cork out, try again. In all cases same thing. Move the contents of those bottles to a different bottle, corked just fine. I have to believe that the difference was the bottle they were going into. We use about 99% recycled bottles. We had noticed this previously with bottles of Michael David Winery Petite Petit, all of those had issues, so we have started tossing those bottles. I suppose I need to measure one of the corks from what I think are smaller bottles to verify, but I don't have the calipers at hand to be precise enough.
"I suppose I need to measure one of the corks from what I think are smaller bottles to verify, but I don't have the calipers at hand to be precise enough."
Measure the circumference with a piece of string and divide by pi (3.14159265).
I had that thought, but the margin of error between 17.5 mm and 18.5 mm piece of string is huge. (and I stole those two numbers from above). That's why I thought calipers were the correct measurement instrument.
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