Scottish Ale - Crystal vs Carmelization

First of all, the "guidelines" are practially meaningless.
It all depends how "traditional" you want to be. Personally, for Scotch Ale, I boil a segment of the wort separately, concentrating it down to about 1/4-1/3 volume, and then add it to the overall boil.
Where I break from "tradition" is to use at least 25-30% Munich malt.

Recently, in a corner of my cupboard, I found a bottle of Scotch Ale I brewed in 1991. It was SO delicious that I immediately set out to brew a batch from the same recipe specifically to lay aside to age (though it probably won't make it to 35+ years).

 

I boil the first gallon into a syrup for smaller scottish beers, and boil the entire first runnings into a syrup for bigger scottish beers. I also do that with barleywines which seems to get a much richer and deeper malt character than simply using crystal and other adjuncts with a standard boil length.

 

I do a little caramel malt but still boil down about a gallon and do a 90 minute boil. End result is caramel awesomeness.

 

Would about 3 ounces of Lyle's Black Treacle added at the end of the boil (for a roughly 5.5 gallon batch) give it something akin to the caramelized wort taste? It is pretty much a caramelized invert sugar.

https://mashmadeeasy.yolasite.com

 

Of course you should brew it however you like, but the old guidelines for caramelizing wort have been contested as non-traditional.
http://barclayperkins.blogspot.com/2016/09/more-bollocks-about-scottish-brewing.html

 

I also wonder if (as an alternative to my earlier suggestion of Lyle's Black Treacle) you could add 3 or 4 ounces of D90 Candi Syrup to get the caramelized Scotch Ale effect?

https://mashmadeeasy.yolasite.com

 

A very wise man once said ( Wolfgang Kunze) buy your caramels, don't make them yourself.

 

I voted neither. I do a standard 60 minute boil. My grain bill for my last Scottish ale consisted of GP, Munich II, and a bit of black malt. Mashed high and fermented cool, I don't miss the caramel flavors or perceived sweetness at all. I've also gotten good feedback on the beer from family members who do generally like the style.

Full disclosure: I dislike caramel flavors (in general, but especially in beer) so I never use crystal malt in any of my beers. This also means I have never liked commercially produced Scottish ales much.

 

To brew any style of Scottish ale except for a light shilling beer I fire up the kettle so that it's very hot and then slowly bring the wort over from the mash tun. The initial runnings will "sizzle" and caramelize, and then as I go I'll be almost at boiling as I fill the kettle. I'll extend the boil for a larger Scotch ale but the early start on the boil seems to be more than enough for regular strength ale.

 

Spoken like a man who has never tried to buy british brewing sugar in weights less than a ton

I've never tried treacle in a beer but I like the effect of the darker homemade invert

 

Love this technique. Usually I simply reduce the first couple gallons by about 3/4ths and add that back to the main wort once it's in the fermenter.

 

What retail level purchasable brands and types are the best matches to official caramelized wort?

 

Basically, yes. However, you can get a lot of flavor (read: not cloying sweetness) from certain candi syrups, especially the darker ones.