i'm joie chen, and on this week's talk to al jazeera, i'm joined by chocolate taster angus kennedy. >> so what do we have here angus? it's a plate with two different kinds of chocolate? >> yeah, we got two types of chocolate here, they're sort of-- this is called kind of low-end chocolate, you know, mass produced-- quite high sugar content. and then you've got kind of a high-end more luxury type chocolate. >> and how do i tell the difference? >> well, it's called a snap test. it's quite simple. you-- you literally take a piece of-- of chocolate and you break it and you listen. it's-- it's (laugh) that simple. >> what chocolate do i do--. >> and--. >> --so this would be? >> so if-- this would-- this would be sort of your more low-end, so if-- if you kind of break a bit off, it's not gonna make so much of a click. >> it really makes no noise at all. >> it-- no, it-- no, it doesn't. and-- and if you-- if you take the different bar ... >> definitely makes a snap. >> really does. >> definitely does. >> but then if-- if-- if everything is 70% cocoa, right 'cause now they advertise that in t

next on talk to al jazeera angus kennedy tells us about the latest and strangest in chocolate trends. [[joie chen]] welcome back to talk to al jazeera. i'm joie chen. with me this week is renowned chocolate expert angus kennedy. >> when we're walking through the factory looking at this vat, i mean, this is sort of the-- this is-- this is the centerpiece of chocolate, right, this is-- this is--. >> it's kind of death by chocolate almost, isn't it. >> the cosmic swirl of the universe in chocolate. >> yes. yeah, i-- yeah, 'cause what they do is they-- they get this chocolate and they mix it up, they-- they temper it for a little bit, that-- that's actually what it's called. and-- every choc-- every chocolate factory will have these, you know, huge vats of chocolate. and it really is quite mes--. >> this is like veruca salt, or who-- no, who is it that fell into the-- the vat-- but in any case, so-- it's-- it's a charlie (laugh) character. >> yeah, it is, yeah-- yeah, so-- yeah-- it's-- it's-- but-- but it-- but it's almost meditational, when you-- when you look inside this thing, it's li