Crochet in Back Bump of Foundation Chain
Crochet in the back bump of a foundation chain is a technique which keeps the bottom of the foundation row looking the same as the top of the finishing row. The benefits of crochet in the back bump are: 1. more elastic foundation chain; 2. neater and smoother edge; 3. professional finish; 4. makes seaming easier; 5. makes it easier to add a crochet edge.
If you look closely at the photo above you can see the lovely professional finish of the foundation chain at the bottom.
Crochet in Front of Foundation Chain
Of course when you first learn to crochet you begin with working stitches into the foundation chain from the front of the work (right side). Have a look at the photos below, where you normally place your stitches in the foundation chain.
Foundation chain front view resembles a "V" lying on it's side. You can easily see where to insert your hook and make your stitches. This technique creates a straight, rigid edge without any elasticity, and looks totally different from the top of the finishing row. HINT: When using this technique, depending on the stitches in following row, I always prefer to use a hook one size larger for the foundation row. This allows the foundation row to have a bit more stretch and will match the width of the following rows. Or if you prefer (and can manage it) you can crochet a loose foundation chain with the same hook used for the rest of the work.
You can see above how to proceed with single crochet in the "V" of the foundation chain. Simply place hook into the "V" of the foundation chain, yarn over hook, pull through, yarn over hook, pull through two loops on hook, single crochet complete.
Above is a photo of how the single crochet row looks from the front and the back when crochet in the foundation row in the traditional way.
HOW to CROCHET in BACK BUMP
Now let's get on with showing you how to crochet in the back bump.
Have a good look at the front and back view of the foundation chain. It is these back bumps on the back of the chain where you will work your single crochet.
Single crochet in 2nd back bump from stitch. Place hook through back bump, yarn over hook, pull through, yarn over hook, pull through two loops on hook, single crochet complete. Repeat to end.
In the photo below there are five (5) single crochet in back bumps, you can already see the lovely professional edge on the foundation chain.
Continue to the end of the foundation chain and marvel at your newly learned skill. So simple. HINT: Remember the foundation chain needs to be loose, not so tight you can't get your hook through the back bump.
NOW take a good look at the photo below and compare the foundation chain of both techniques.
By using Crochet in Back Bump technique you end up with a professional neat edge which has elasticity, stability and strength.
I do hope you try this technique and enjoy expanding your crochet skills whenever you get the opportunity!