I wrote up the pattern for my ball jar cosy for the two other knitters in the world who would even need a mason jar cosy. ill post picture once its finished blocking. ive never written out a pattern before so be kind.
Edit- i wrote up the pattern before the cozy was finished drying from blocking. the fabric stretched quite a bit after it was dry. this could be due to the fact i pulled it on and off a few times while it was still wet but im going to assume that it was the cotton's natural bloom. becuase of this i would recommend knitting this with a size 6 instead of the size 7s listed. i havent tried this but i will be casting on for another soon. i dont particularly mind the growth as the cozy doesnt fall off or anything but is a little loose so i would recommend the needle change to those who want a very snug cozy.
Knitted Ball Jar Cozy*
*note the jar I have is a Kerr 1 quart wide mouth mason jar. if you have a different size or brand you may have to adjust the pattern.
materials- .25 skein Lion Brand Cottonease
size 7 24" needles (for magic loop) or set of 4 size 7 dpn if you prefer it
gauge- 4 st. to the inch in stockinette stitch
pattern stitch- Chevron Stitch
Multiple of 8 sts + 1
Row 1: k1, *p7, k1; rep from *
Row 2: k1, *p7, k1; rep from *
Row 3: k2, *p5, k3; rep from *, end p5, k2
Row 4: k2, *p5, k3; rep from *, end p5, k2
Row 5: k3, *p3, k5; rep from *, end p3, k3
Row 6: k3, *p3, k5; rep from *, end p3, k3
Row 7: k4, *p1, k7; rep from *, end p1, k4
Row 8: k4, *p1, k7; rep from *, end p1, k4
Row 9: Rep Row 2
Row 10: Rep Row 1
Row 11: Rep Row 4
Row 12: Rep Row 3
Row 13: Rep Row 6
Row 14: Rep Row 5
Row 15: Rep Row 8
Row 16: Rep Row 7
Co. 8 stitches divide for magic loop
Round 1- *k1, increase 1 by knitting into the front and back of next stitch (kfb)* repeat to end of round-12 st.
Round 2 and all subsequent even rounds-knit
Round 3- *knit 2, kfb* repeat to end of round-16 st.
Round 5- *knit 3, kfb* repeat- 20 st.
Round 7- *knit 4, kfb* repeat- 24 st.
Round 9- *knit 5, kfb* repeat- 28 st.
Round 10 *knit 6, kfb* repeat- 32 st.
Round 11 *knit 7, kfb* repeat- 36 st.
Round 12 *knit 8, kfb* repeat- 40 st.
purl 1 round
next round-start chevron stitch pattern and repeat twice
next round-purl 3, slip 1, purl 2tog, pass slip stitch over, *purl 5, slip 1, purl 2tog, psso* repeat until 6 stitches before slip 1, purl 2tog, psso, purl 3.
purl 5 round
I blocked the cozy on the jar. this seemed the eliminate the little nipple that is formed by the increases on the bottom.