Back Loop Only (BLO) — crochet stitch tutorial
Creates a crisp fold line — this is how a flat bag base turns up into a wall at a sharp 90°.
UK terminology: back loop only
How to work it
- Look at the top of the stitch: two loops form a V.
- Insert the hook under only the loop furthest from you.
- Complete the stitch as normal. A visible ridge forms on the front.
Tips
- One BLO round at the base-to-side transition is worth more than any amount of blocking.